.header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    /* height: 115px; */
    padding: 20px;

    /* background-color: red; */
    background-color: #f3f3f3;
    z-index: 222;
}
.header-content{
    align-items: center;
    height: 75px;

    border-radius: 10px;
    background-color: white;
}

.header-content a.logo{
    display: block;
    height: 50px;
    margin-right: 20px;
    margin-left: 32px;
}
.header-content a.logo img{
    vertical-align: top;
    height: 100%;
    margin-top: -10px;
}

.header-content .menu-btn{
    font-size: 30px;
    color: #555;
    cursor: pointer;
}

.header-content .nav-list{
    align-items: center;
}

.header-content .nav-list >li a{
    display: block;
    padding: 5px 15px;

    // background-color: #000;
    border-radius: 10px;
    color: #000;
}


.header-content .nav-list >li a:hover{
    background-color: #ddd;
}




.menu{
    position: fixed;
    top: 115px;
    left: 20px;
    bottom: 20px;
    width: 260px;
    padding: 15px;
    overflow-y: auto;
    scrollbar-gutter: stable;

    background-color: #fff;
    border-radius: 10px;
    z-index: 222;  
    transition: all .3s;

    /* 整个滚动条*/
    &::-webkit-scrollbar {
        width: 5px;
        padding: 0px 20px;
    }
    /* 滚动条轨道*/
    &::-webkit-scrollbar-track {
        border-radius: 10px;
        background-color: #000;
        margin: 20px 0px;
    }
    /*滚动条上的滚动滑块*/
    &::-webkit-scrollbar-thumb {
        width: 14px;
        border-radius: 10px;
        background-color: #ddd;
    }
}
.menu-item{
    height: 40px;
    overflow: hidden;

    transition: all 1s ease;
    
    .menu-item-title{
        display: flex;
        align-items: center;
        height: 40px;
     
        color: #000;
        cursor: pointer;
        .item-icon{
            margin-left: 15px;
            margin-right: 10px;
            font-size: 20px;
        }
        .item-down{
            flex: 1;
            text-align: right;
            margin-right: 10px;
            font-size: 20px;
            i{
                transform: rotate(90deg);
            }
            
        }       
    }
    .menu-item-body{
        
        >li{

            >a{
                display: block;
                height: 40px;
                line-height: 40px;
                padding-left: 20px;
                color: #000;
               
                .item-icon{
                    font-size: 16px;
                    margin-right: 10px;
                }

                &:hover{
                    // background-color: aqua;
                }
            }
        }
    }

    &.menu-item-active{
        // height: auto;
        .menu-item-title{
            color: white;
            background-color: red;
            .item-icon{
              
            }
            .item-down{
               
            }       
        } 
    }
}


.main{
    margin: 115px 10px 20px 290px;
    /* min-height: 1000px; */

    /* background-color: green; */
    /* border-radius: 10px; */
}
.main-row{
    display: flex;
    flex-wrap: wrap;
}
.main-row.first-row{
    margin-top: -10px;
}
.main-row .col{
    /* border: 1px solid gold; */
    padding: 10px;
    min-height: 200px;

    /* background-color: red; */
}
.main-row .col .col-content{
    /* border: 1px solid gold; */
    height: 100%;

    background-color: white;
    border-radius: 10px;
}


.footer{
    position: relative;
    height: 80px;

    background-color: #000;
    z-index: 999;
}

